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Camber Capital Management LP

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13F filer, CIK 1444043, BOSTON, MA

Camber Capital Management LP reported $4,080,418,000 across 36 holdings for the quarter ended 2024-03-31, in a 13F-HR filed 2024-05-15. Its ten largest share positions make up 64.87% of the portfolio.

Filed (acceptance time not in the bulk data set), ingested 13F-HR 0001654954-24-006308

Period
2024-03-31
Reported value
$4.08B
Holdings
36
Top 10 weight
64.87%
New
6
Sold out
8

Largest buys vs the previous quarter

SecurityShares changeApprox. value
BIIBnew+400,000$86.3M
JAZZadded+475,000$57.2M
QIAGEN NVnew+1,210,000$52M
DNLInew+1,500,000$30.8M
BMRNnew+250,000$21.8M

Ranked by the share change valued at this quarter's implied price (value over shares in the 13F). A position sold out is valued at the previous quarter's price, its last report.

Largest sells vs the previous quarter

SecurityShares changeApprox. value
THCreduced-1,845,000-$194M
UHSreduced-620,000-$113M
IONSexited-865,000-$43.8M
RAREexited-900,000-$43M
QDELexited-400,000-$29.5M

Ranked by the share change valued at this quarter's implied price (value over shares in the 13F). A position sold out is valued at the previous quarter's price, its last report.

Holdings, Q1 2024

Share positions as resolved from 13F-HR 0001654954-24-006308, largest first. % of portfolio is the value over $2,860,289,000, the sum of the share positions whose value is usable for ratios (method).

SecurityHistorySharesValue% of portfolioChangeLatest eventTimeline
ZBHZIMMER BIOMET HOLDINGS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2022Q2: restricted; 2022Q3: restricted; 2022Q4: restricted; 2023Q1: restricted; 2023Q2: restricted; 2023Q3: 1,850,000 shares; 2023Q4: 1,925,000 shares; 2024Q1: 1,925,000 shares 1,925,000$254M8.88%0Timeline
UHSUNIVERSAL HLTH SVCS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2022Q2: restricted; 2022Q3: restricted; 2022Q4: restricted; 2023Q1: restricted; 2023Q2: restricted; 2023Q3: 2,000,000 shares; 2023Q4: 1,870,000 shares; 2024Q1: 1,250,000 shares 1,250,000$228M7.97%-620,000Timeline
BAXBAXTER INTL INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2022Q2: restricted; 2022Q3: restricted; 2022Q4: restricted; 2023Q1: restricted; 2023Q2: restricted; 2023Q3: 3,000,000 shares; 2023Q4: 5,000,000 shares; 2024Q1: 5,000,000 shares 5,000,000$214M7.47%0Timeline
THCTENET HEALTHCARE CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2022Q2: restricted; 2022Q3: restricted; 2022Q4: restricted; 2023Q1: restricted; 2023Q2: restricted; 2023Q3: 3,650,000 shares; 2023Q4: 3,745,000 shares; 2024Q1: 1,900,000 shares 1,900,000$200M6.98%-1,845,000Timeline
VTRSVIATRIS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2022Q2: restricted; 2022Q3: restricted; 2022Q4: restricted; 2023Q1: restricted; 2023Q2: restricted; 2023Q3: 20,000,000 shares; 2023Q4: 18,500,000 shares; 2024Q1: 16,250,000 shares 16,250,000$194M6.78%-2,250,000Timeline
WALGREENS BOOTS ALLIANCE INCWALGREENS BOOTS ALLIANCE INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2022Q2: restricted; 2022Q3: restricted; 2022Q4: restricted; 2023Q1: restricted; 2023Q2: restricted; 2023Q3: 5,200,000 shares; 2023Q4: 7,000,000 shares; 2024Q1: 7,800,000 shares 7,800,000$169M5.91%+800,000
MYGNMYRIAD GENETICS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2022Q2: restricted; 2022Q3: restricted; 2022Q4: restricted; 2023Q1: restricted; 2023Q2: restricted; 2023Q3: 6,635,000 shares; 2023Q4: 7,635,000 shares; 2024Q1: 7,635,000 shares 7,635,000$163M5.69%0Timeline
MDTMEDTRONIC PLCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2022Q2: restricted; 2022Q3: restricted; 2022Q4: restricted; 2023Q1: restricted; 2023Q2: restricted; 2023Q3: 1,500,000 shares; 2023Q4: 1,850,000 shares; 2024Q1: 1,850,000 shares 1,850,000$161M5.64%0Timeline
JAZZJAZZ PHARMACEUTICALS PLCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2022Q2: restricted; 2022Q3: restricted; 2022Q4: restricted; 2023Q1: restricted; 2023Q2: restricted; 2023Q3: not reported; 2023Q4: 675,000 shares; 2024Q1: 1,150,000 shares 1,150,000$138M4.84%+475,000Timeline
GMEDGLOBUS MED INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2022Q2: restricted; 2022Q3: restricted; 2022Q4: restricted; 2023Q1: restricted; 2023Q2: restricted; 2023Q3: 1,725,000 shares; 2023Q4: 2,250,000 shares; 2024Q1: 2,500,000 shares 2,500,000$134M4.69%+250,000Timeline
PTCTPTC THERAPEUTICS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2022Q2: restricted; 2022Q3: restricted; 2022Q4: restricted; 2023Q1: restricted; 2023Q2: restricted; 2023Q3: 3,400,000 shares; 2023Q4: 4,000,000 shares; 2024Q1: 4,000,000 shares 4,000,000$116M4.07%0Timeline
SEMSELECT MED HLDGS CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2022Q2: restricted; 2022Q3: restricted; 2022Q4: restricted; 2023Q1: restricted; 2023Q2: restricted; 2023Q3: 3,400,000 shares; 2023Q4: 3,400,000 shares; 2024Q1: 3,400,000 shares 3,400,000$103M3.58%0Timeline
BKDBROOKDALE SR LIVING INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2022Q2: restricted; 2022Q3: restricted; 2022Q4: restricted; 2023Q1: restricted; 2023Q2: restricted; 2023Q3: 18,000,000 shares; 2023Q4: 15,500,000 shares; 2024Q1: 15,500,000 shares 15,500,000$102M3.58%0Timeline
GSKGSK PLCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2022Q2: restricted; 2022Q3: restricted; 2022Q4: restricted; 2023Q1: restricted; 2023Q2: restricted; 2023Q3: 2,850,000 shares; 2023Q4: 2,175,000 shares; 2024Q1: 2,175,000 shares 2,175,000$93.2M3.26%0Timeline
BIIBBIOGEN INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2022Q2: restricted; 2022Q3: restricted; 2022Q4: restricted; 2023Q1: restricted; 2023Q2: restricted; 2023Q3: not reported; 2023Q4: not reported; 2024Q1: 400,000 shares 400,000$86.3M3.02%newTimeline
SRPTSAREPTA THERAPEUTICS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2022Q2: restricted; 2022Q3: restricted; 2022Q4: restricted; 2023Q1: restricted; 2023Q2: restricted; 2023Q3: 800,000 shares; 2023Q4: 800,000 shares; 2024Q1: 585,000 shares 585,000$75.7M2.65%-215,000Timeline
ZIMVIE INCZIMVIE INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2022Q2: restricted; 2022Q3: restricted; 2022Q4: restricted; 2023Q1: restricted; 2023Q2: restricted; 2023Q3: 3,250,000 shares; 2023Q4: 3,250,000 shares; 2024Q1: 3,250,000 shares 3,250,000$53.6M1.87%0
QIAGEN NVQIAGEN NVQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2022Q2: restricted; 2022Q3: restricted; 2022Q4: restricted; 2023Q1: restricted; 2023Q2: restricted; 2023Q3: not reported; 2023Q4: not reported; 2024Q1: 1,210,000 shares 1,210,000$52M1.82%new
PRGOPERRIGO CO PLCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2022Q2: restricted; 2022Q3: restricted; 2022Q4: restricted; 2023Q1: restricted; 2023Q2: restricted; 2023Q3: 1,850,000 shares; 2023Q4: 1,850,000 shares; 2024Q1: 1,520,000 shares 1,520,000$48.9M1.71%-330,000Timeline
COLLCOLLEGIUM PHARMACEUTICAL INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2022Q2: restricted; 2022Q3: restricted; 2022Q4: restricted; 2023Q1: restricted; 2023Q2: restricted; 2023Q3: 1,050,000 shares; 2023Q4: 1,050,000 shares; 2024Q1: 852,900 shares 852,900$33.1M1.16%-197,100Timeline
DNLIDENALI THERAPEUTICS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2022Q2: restricted; 2022Q3: restricted; 2022Q4: restricted; 2023Q1: restricted; 2023Q2: restricted; 2023Q3: not reported; 2023Q4: not reported; 2024Q1: 1,500,000 shares 1,500,000$30.8M1.08%newTimeline
HLFHERBALIFE LTDQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2022Q2: restricted; 2022Q3: restricted; 2022Q4: restricted; 2023Q1: restricted; 2023Q2: restricted; 2023Q3: 2,850,000 shares; 2023Q4: 2,000,000 shares; 2024Q1: 3,000,000 shares 3,000,000$30.1M1.05%+1,000,000Timeline
OSURORASURE TECHNOLOGIES INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2022Q2: restricted; 2022Q3: restricted; 2022Q4: restricted; 2023Q1: restricted; 2023Q2: restricted; 2023Q3: 4,250,000 shares; 2023Q4: 4,250,000 shares; 2024Q1: 4,250,000 shares 4,250,000$26.1M0.91%0Timeline
BROOKDALE SR LIVING INCBROOKDALE SR LIVING INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2022Q2: restricted; 2022Q3: restricted; 2022Q4: restricted; 2023Q1: restricted; 2023Q2: restricted; 2023Q3: 250,000 shares; 2023Q4: 250,000 shares; 2024Q1: 250,000 shares 250,000$22.7M0.79%0
REPLREPLIMUNE GROUP INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2022Q2: restricted; 2022Q3: restricted; 2022Q4: restricted; 2023Q1: restricted; 2023Q2: restricted; 2023Q3: 2,000,000 shares; 2023Q4: 1,000,000 shares; 2024Q1: 2,750,000 shares 2,750,000$22.5M0.79%+1,750,000Timeline
BMRNBIOMARIN PHARMACEUTICAL INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2022Q2: restricted; 2022Q3: restricted; 2022Q4: restricted; 2023Q1: restricted; 2023Q2: restricted; 2023Q3: 300,000 shares; 2023Q4: not reported; 2024Q1: 250,000 shares 250,000$21.8M0.76%newTimeline
PTONPELOTON INTERACTIVE INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2022Q2: restricted; 2022Q3: restricted; 2022Q4: restricted; 2023Q1: restricted; 2023Q2: restricted; 2023Q3: 4,500,000 shares; 2023Q4: 4,500,000 shares; 2024Q1: 4,500,000 shares 4,500,000$19.3M0.67%0Timeline
INGNINOGEN INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2022Q2: restricted; 2022Q3: restricted; 2022Q4: restricted; 2023Q1: restricted; 2023Q2: restricted; 2023Q3: 2,000,000 shares; 2023Q4: 2,000,000 shares; 2024Q1: 2,000,000 shares 2,000,000$16.1M0.56%0Timeline
SKINSKINHEALTH SYSTEMS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2022Q2: restricted; 2022Q3: restricted; 2022Q4: restricted; 2023Q1: restricted; 2023Q2: restricted; 2023Q3: 5,000,000 shares; 2023Q4: 3,500,000 shares; 2024Q1: 3,500,000 shares 3,500,000$15.5M0.54%0Timeline
BCYCBICYCLE THERAPEUTICS PLCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2022Q2: restricted; 2022Q3: restricted; 2022Q4: restricted; 2023Q1: restricted; 2023Q2: restricted; 2023Q3: 400,000 shares; 2023Q4: 450,000 shares; 2024Q1: 450,000 shares 450,000$11.2M0.39%0Timeline
TBPHTHERAVANCE BIOPHARMA INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2022Q2: restricted; 2022Q3: restricted; 2022Q4: restricted; 2023Q1: restricted; 2023Q2: restricted; 2023Q3: not reported; 2023Q4: not reported; 2024Q1: 1,000,000 shares 1,000,000$8.97M0.31%newTimeline
PBYIPUMA BIOTECHNOLOGY INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2022Q2: restricted; 2022Q3: restricted; 2022Q4: restricted; 2023Q1: restricted; 2023Q2: restricted; 2023Q3: 4,235,000 shares; 2023Q4: 2,805,000 shares; 2024Q1: 1,650,000 shares 1,650,000$8.74M0.31%-1,155,000Timeline
CUREVAC N VCUREVAC N VQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2022Q2: restricted; 2022Q3: restricted; 2022Q4: restricted; 2023Q1: restricted; 2023Q2: restricted; 2023Q3: 1,750,000 shares; 2023Q4: 1,750,000 shares; 2024Q1: 1,750,000 shares 1,750,000$5.3M0.19%0
GMABGENMAB A/SQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2022Q2: restricted; 2022Q3: restricted; 2022Q4: restricted; 2023Q1: restricted; 2023Q2: restricted; 2023Q3: not reported; 2023Q4: not reported; 2024Q1: 50,000 shares 50,000$1.5M0.05%newTimeline

Options

Puts and calls, as filed. The amount and value describe the underlying shares, not the option premium, so they stay out of % of portfolio (H5).

SecurityTypeAmountValueChange
SPYSTATE STR SPDR S&P 500 ETF T SHSput2,200,000$1.15B+200,000
PFEPFIZER INC COMcall2,500,000$69.4M-1,420,000

Sold out in Q1 2024

Positions in the previous quarter's report that this quarter's report no longer lists.

SecurityShares beforeValue beforeType
IONSIONIS PHARMACEUTICALS INC865,000$43.8Mshares
RAREULTRAGENYX PHARMACEUTICAL IN900,000$43Mshares
QDELQUIDELORTHO CORP400,000$29.5Mshares
QIAGEN NVQIAGEN NV615,000$26.7Mshares
MRNAMODERNA INC250,000$24.9Mshares
HRMYHARMONY BIOSCIENCES HLDGS IN750,000$24.2Mshares
ASNDASCENDIS PHARMA A/S165,000$20.8Mshares
SLDBSOLID BIOSCIENCES INC1,418,439$8.71Mshares

How Q1 2024 was built

Available 13F filings of this filer for the quarter and their roles: the base report is the latest original or restatement, NEW HOLDINGS amendments filed after it are added (method).

FilingRoleAmendmentFiledAcceptedIngested
13F-HR 0001654954-24-006308 base2024-05-15acceptance time not in the bulk data set